Improvement in mechanism for operating shuttle-boxes in looms



iiniicd girava aient @time TO THOMAS WOOD, OF

PH [LA DELPHIA, PENNSYLVANIA.

Letters Patent No. 90,212, dated May 18, 1869.

IMPROVEMENT IN MECHANISM FOR OPERATING- SHUTTLE-BOXES IN LOOMS.

The Schedule referred to in these Letters Patent and -making part of the same.

To all whom it may concern:

Be it known that I, WILLIAM WHrrEsIDE, of' Manayunl, city of Philadelphia, and State of Pennsylvania, have invented a new and useful Improvement in Power-Looms; and I do hereby declare that the following is a full, clear, and construction and operation of the same, reference being had to the accompanying drawing, and to the letters marked thereon.

The drawing represents. an end view of a loom-frame and the improvement.

Similar letters refer to like parts.

The nature of my improvement consists in the com bination and arrangement of a weighted lever with the star-cam of a two-box mot-ion of a power-loom for weaving plaids; and the object of said improvement` is to balance the shuttle-box, and eithenone lever or the other, holding the star-can1 all the time, preventing the box from fallin g or chaugiuguntil acted upon by the wiper F, saving filling, avoiding smashes, and enabling the loom to be run at a greater speed.

To enable others skilled in the art to make and use my improvement, I willproceed to describe the construction and operation of the saine.

Referring to the drawings- A is the loom-i`raine;

C, the ordinary star-cam E, pawl or pusher;

F, a cam, usually called wiper; and

B, a side lever, to connect with the lifting-rod of the box.

All these parts are made in the usualmanner.

D is a lever pivoted on the stud s. This stud is fastened to the frame A.

exact description of the ,u

'On one end of the lever D is hung a weight, G. The other end is turned upward, and rounded to fit between the points of the earn C.

The operation is as follows:

The star-cam is operated by the wiper F, pawl E, and ratchet-wheel on the cam.

The position shown in the. drawing is when the box isnp.

The next revolution of the wiper moves the ratchetwheel one tooth, which drops the box. Then the point on lever B will be between the points of cam C, and point on lever D will be on one of the points of cam C. The next movement, the weight G assists in raising the box\,and in the'drop it prevents rebounding or jarring. I

'With my improvement, I am enabled to dispense with the tiictiou-pulley and strap; also the retainingcatch used in the ordinary star-motion; furthermore, to run the loom faster, with less rebounding and jar ring of the box, and preventing the box dropping at the wrong time, saving filling and preventing sinashes; all of which will be readily understood by one acquainted with the star-motion, which is` well known in most parts of the States.

I claim, in combination with the box-rod supporting-lever B, and star-cam C, the weighted lever D, for retaining the same in position, substantially'as described.

WILLIAM WHITESIDE.

Witnesses: n

J oHN SHINE, JAMES MGKNIGHT. 

